Home / 15,850.97-21,874.30-9,136.55

Finding the Fourth Proportional to 15,850.97, 21,874.30 and 9,136.55

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Solution

The fourth proportional to 15,850.97, 21,874.30 and 9,136.55 is: 12,608.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,850.97 : 21,874.30 = 9,136.55 : x
  2. Step 2: Convert to fraction form
    15,850.97/21,874.30 = 9,136.55/x
  3. Step 3: Cross multiply
    15,850.97x = 21,874.30 × 9,136.55
  4. Step 4: Simplify right side
    15,850.97x = 199,855,480.61
  5. Step 5: Solve for x
    x = 199,855,480.61/15,850.97
  6. Step 6: Final answer
    x = 12,608.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.